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United States Patent | 5,016,815 |
Doi ,   et al. | May 21, 1991 |
A control system for an air conditioner for a vehicle effects the switching between a heat mode and a heat/defrost mode on the basis of the ambient temperature and the amount of solar radiation present.
Inventors: | Doi; Shigetoshi (Hiroshima, JP); Nagayama; Yoshiaki (Hiroshima, JP) |
Assignee: | Mazda Motor Corporation (Hiroshima, JP) |
Appl. No.: | 427485 |
Filed: | October 27, 1989 |
Oct 28, 1988[JP] | 63-270849 |
Current U.S. Class: | 236/49.3; 165/42; 165/233; 236/91C; 237/12.3A; 454/145; 454/900 |
Intern'l Class: | B60H 001/04 |
Field of Search: | 98/2.08,2.01 237/12.3 A,12.3 B 236/91 C,91 E,49.3 165/42,43,17 |
4291749 | Sep., 1981 | Ootsuka et al. | 236/49. |
4434932 | Mar., 1984 | Hara et al. | 98/2. |
4537245 | Aug., 1985 | Nishimura et al. | 236/49. |
4660461 | Apr., 1987 | Ohashi et al. | 98/2. |
4681153 | Jul., 1987 | Uchida | 237/2,3. |
4690203 | Sep., 1987 | Iida | 237/12. |
4760772 | Aug., 1988 | Horiguchi et al. | 98/2. |
4791981 | Dec., 1988 | Ito | 237/12. |
4819715 | Apr., 1989 | Kobayashi | 237/12. |
4858158 | Aug., 1989 | Yamaguchi et al. | 237/12. |
4890460 | Jan., 1990 | Takasi et al. | 165/43. |
Foreign Patent Documents | |||
30610 | Feb., 1982 | JP | 236/49. |
45210 | Mar., 1984 | JP | 236/91. |
120084 | Apr., 1989 | JP. |